Residential AC/DC Distribution Board Design

@eslamsaeid1991

Hello sir, Below is the complete engineering design, device selections, and bill of materials (BOM) for both the AC Distribution Board (ACDB) and DC Distribution Board (DCDB) tailored specifically to your installation parameters. Technical System Parameters & Key Component Specifications Grid Service: 440V L-L / 254V L-N, 3-Phase + Neutral + PE, 50 Hz. Inverter Model: Deye SUN-15K-G03 (15 kW 3-phase grid-tied inverter, 2 MPPTs, Max. Input Voltage 1000V DC, Rated Output Current 21.8A per phase).PV Modules: Waaree 700W HJT (V_{oc} \approx 49.83\text{V}, I_{sc} \approx 17.80\text{A}, V_{mp} \approx 41.79\text{V}, I_{mp} \approx 16.75\text{A}).Array Sizing Setup: 24 Panels Total (16.8 kWp total capacity, ~112% DC/AC ratio). Split into 2 Strings of 12 Panels in series per string (V_{oc,string} = 12 \times 49.83\text{V} = 598\text{V DC}$, well within the inverter's $1000\text{V}$ limit and optimal MPPT operating range). Eslam

@Deepak87k

Hi, I can design the ACDB and DCDB for your residential solar system, including SLDs, detailed wiring diagrams, board layouts, cable routing, SPD protection, BOM, and design notes. I can work with your **440V, 50Hz supply, Deye SUN-15K-G03 inverter, and Waaree 700W HJT panels**. I’ll consider proper breaker sizing, DC string protection, SPDs, earthing, busbars, cable sizing, and future solar/battery expansion. I can prepare the drawings in AutoCAD/EPLAN with clear documentation for your electrician and provide a complete, practical BOM. Thanks, Deepak

@aryaptel0311

This proposal covers the engineering design of the electrical distribution backbone for a new residential property — an AC Distribution Board (ACDB) for utility/load-side power, and a DC Distribution Board (DCDB) sized and laid out to receive the future rooftop solar PV array and connect into the Deye SUN-15K-G03 inverter. The design will incorporate surge protection at both AC and DC levels from the outset, and will reserve capacity for later battery storage integration.

@SusNavaTech

As an electrical engineering firm committed to safety, reliability, and sustainability, we believe we can provide you with the comprehensive design you need for your residential AC/DC distribution boards. Our deep understanding of power systems affords us the unique ability to design a system that not only meets local code compliance but also incorporates the best wiring conventions and protection measures. Crucially, our unbiased approach to brand and model selection aligns seamlessly with your project requirements. We will carefully select the most suitable components such as breakers, SPDs, busbars, enclosures, and meters from a range of brands to maximize performance without compromising on quality. You will receive not only a high-level design encompassing single line & detailed wiring diagrams but also physical layout drawings for device placement & cable routing ensuring clear communication of our recommended designs to your installer. At the end of the day, our goal is to deliver designs that convert engineering concepts into safe, reliable, and efficient realities, which we believe makes us an ideal choice for your project.

@guptabharat290

I have more than Twenty Three years of experience in DESIGN, ESTIMATION, PROCUREMENT & EXECUTION OF ELECTRICAL, INSTRUMENTATION & AUTOMATION PANELS, DBs, JBs, and Receptacles with various milestones of achievement for given targets. I will provide complete design for both the AC Distribution Board (ACDB) and the DC Distribution Board (DCDB) as per your requirement with 01 Revision.

@Aalvina184

I can design a complete and well-organized ACDB and DCDB system for your new home, including load distribution, MCB/MCCB/RCCB selection, cable sizing, earthing, and integrated AC/DC surge protection. I can also provide detailed single-line diagrams, DB schedules, and circuit layouts coordinated with the architectural plan. My focus will be on safety, efficiency, and practical installation.

@emmanuelo323

I am an engineering designer with strong CAD/CAM expertise and practical experience developing precise, installation-ready technical designs. I can design a robust ACDB and DCDB for the specified 440V/50Hz residential system, with proper breaker selection, busbars, metering, surge protection, cable sizing/routing, and protection coordination. I can also account for the Deye SUN-15K-G03 inverter and 700W HJT solar panels, while designing the distribution architecture to support future rooftop solar and battery integration. My deliverables will include professional single-line and detailed wiring diagrams, physical board layouts, cable routing, a comprehensive BOM with specifications and quantities, and clear design notes covering protection, diversity, safety, and future expansion. I am proficient in CAD design, including Fusion 360, and have a strong engineering mindset focused on accuracy, reliability, manufacturability, and clear documentation. I will prioritize applicable local electrical codes and best-practice conventions so the final drawings are practical and easy for the electrician to understand and implement.

@royh53

Hello, I am an experienced Electrical/MEP Engineer with a background in residential electrical design, calculations, drawings and BOQs. I can prepare your ACDB/DCDB design package, including: Single-line and detailed wiring diagrams Board layouts and cable routing Component selection and BOM with specifications Design notes covering protection, diversity and future expansion Before confirming the design, please provide the load schedule or appliance list, incoming supply and earthing details, solar panel quantity/string arrangement, inverter datasheet/manual, applicable local standard and any enclosure restrictions. My proposed fee is ₹12,000, including one consolidated revision. Delivery is seven days after receiving complete inputs. Please share the available documents so we can agree the final scope, fee and timeline before award. Best regards,